Throw mechanism for pin-tumbler locks



Dec. 8, 1925- F. E. BEST THROW MECHANISM FOR PIN TUMBLER LOCKS Filed Nov. 29".

Patented can 9 i250 rate FRANK ELLISON BEST, OF SEATTLE, WASHINGTON, ASSIGNOR TO FRANK IN'Q, F SEATTLE, WASHINGTON,

1E. BEST, A. CURPOEATION OF WASHINGTON.

THROW MECHANISM FOR lPIN-TUMBLER LOCKS.

Application filed November 29, 1924:. Serial No. 752,917.

To all whom it may concern:

Be it known that I, FRANK ELLISON Beer, a citizen of the United States, residing at Seattle, in the county of King and State of Washington, have invented certain new and useful Improvements in Throw Mecha- I nisms for Pin-Tumbler Locks, of which the following is a specification.

My invention relates to improvements in throw mechanism for pin tumbler locks and the object of my invention is to provide throw mechanism of simple and eilicient construction that is adapted for use in connection with pin tumbler lock cores of different lengths and that may be used .without alteration in connection with many different forms of latch mechanism.

Another object is to provide throw mechanism for a pin tumbler lock that may be embodied in and become a part of the latch or secondary lock used in connection with the pin tumbler lock and that is arranged to make telescopic connection with pin tumbler lock cores having any desired number of tumbler pin barrels, thus making it possible to use pin tumbler lock cores of a greater or less number of tumbler pin barrels interchangeably in the same look housm inother object is to provide lock throw mechanism in which the part that makes operative connection with the pin tumbler lock core is arranged to sn p into engagement with a latch housink or with an equivalent part that forms a caring for the same.

A further object is to provide throw mechanism of this nature in which the part that makes connection with the lock core is arranged to be connected with. a throw member proper either directly or through the use of an intermediate member.

Other and more specific objects will be apparent from the following description taken in connection with the accompanying drawings.

In the drawings, Figure 1, is an exploded isometric view of a lock and a lock throw mechanism constructed in accordance with my invention showing the several parts separated a short distance from each other. Figure 2 is a view partly in section and partly in elevation showing the several ing two holes or bores 13 above parts assembled in a lock housing and a latch housing.

Figures 3 and 4 are isometric views showmg two different forms of a device that may be used for connecting the lock engagmg member with the throw member proper.

Figure 5 is a view partly in section and partly in elevation showing an adaptation of this throw mechanism in which the lock engaging member and the throw member are connected directly with each other with out the use of any third member of the form shown in Figires 3 and 4.

Figures 6, 7 and 8 are fragmentary sectional views illustrating the operation of a spring snap ring used in this device.

Figure 9 is a detached View in elevation of a staple having its bottom* end bent at right angles to the main portion thereof.

Figure 10 is an isometric View of said staple in a lock throw.

Referring to the drawings, throughout which like reference numerals designate like parts, 10 is a pin tumbler lock core having the usual rotary key plug 11, provided on its inner end with a key stop 12 andhavextending lengthwise thereinto.

The core, 10 is of the lock controlled assembly type disclosed in my prior Patent No. 1,384,002, adapted to be locked within means operated by the usual form in the lock.

The vision of throw mechanism for use in conne tion with this invention, said throw mechanism, as shown in Figures 1 and 2, comprising three parts and as shown in Fi ure 5 comprising only two of said parts.

ne of the parts common to both forms referred to embodies on one side two relatively long rigid pins 15 projecting therefrom and arranged to fit telescopically into the holes 13 in the key plug 11. -Two shorter pins 16 project from the other side of the disc 14 on opposite sides of the center and are arranged to make an operative connection with a cylindrical throw member 17.

The disc 14 is provided with a peripheral groove,18 where n is disclosed an expansible lock ring 19 preferably of spring wire that its housing by use of a key of the issued July 5, 1919, and is present invention consists in the proa disc 14 having llllll arranged tongue that may extend between said pins 16. Either the tongue 25 or groove 24 afford some lost motion be-.

tween'the disc 14 and member 17 which is a necessary feature in some instances in a lock of this nature but both forms of construction provide connections for rotating the cylindrical throw member 17 when the disc 14 is turned. The 10st motion between disc 14 and member 17 is preferably only about fifteen degrees.

Two diametrically opposite pins 26 on the end of member 17 are adapted to be passed through countersunk holes 28 in a throw member 29'and then riveted or clinched to thereby secure the throw 29 and member 17 together.

In Figure 5, I show a form-of construction in which the member 17 is dispensed with and the pins 16 on the end of disc 14 are caused to project directly into holes 30 in the hub 31 of a throw member 32. In this construction shown in Figure 5 the latch housing 33 is provided with a hub 34 forming a bearing for the'hub portion 31 of the throw 32 and is also grooved to receive the snap ring 19 on the disc 14. This construction is especially well adapted for use in thin mortise doors 35 where two throws 32 are used in the same latch housing each holding the other in place and where a lock is used on each side of the door. In assembling a mortise lock of this type the latch housing with the throws 32 therein may first be inserted in the mortise opening in the door 35, the discs 14 with the pins 15 thereon may then be inserted from the sides through the openings repared for the reception of the locks an snapped into place and the lock cores 10 may then be inserted and secured in place thus makin a very simple and easy assembly and permitting the use of a very thin latch housin Figures 6, 7 and 8 show t ree different forms of grooves that may be made for the reception of snap ring 19, Figure 6 show1 n a V or trough shaped groove 36 into wh1c the ring 19 will sna but which may cause said ring to be crow ed back into groove 18 in disc 14 if a pull is exerted on pins 15. Figure 8 shows an annular groove 37 less than a semicircle in cross section that may cause the ring 19 to be crowded back into groove 18 of disc 14 in response to a pull on said disc. The forms shown in Figures 6 and 8 thus act only as detents which permit the disc 14 to be withdrawn if a hard enough pull is exerted thereon. In Figure 7 I show a groove 38 that is substantially a semicircle or that may be greater, but must not be less than a semicircle in cross sectional shape and in which the expansion ring 19 will positively lock in such a manner that the disc 14 cannot be removed after it is locked in place it being apparent that, in this construction, a pull on the disc 14 will have no tendency to crowd the expansion ring 19 down into the groove 18 in the disc 14.

In Figures 9 and 10 I have shown an alternative manner of forming the telescopic pins that fit into the lock core. In the preceding figures these pins 15 are shown integral with throw part 14 but in Figures 9 and 10 the corresponding pins 41 are the two legs of a staple which is bent at right angles at its closed end as at 42 and is adapted to fit within a recess 43 in a throw 44 and to be secured to the throw 44 by crimping or swaging the edges of said throw 44 inwardly as at 45 over or against the p ns 41 or base 42 of said staple. The throw 44 may correspond to either the part 14 or the part 17 or the throw 29 shown in Figure 1. The use of the staple in this manner simplifies and reduces the cost of construction of certain locks of this type.

In the operation of the'construction shown in Figures 1 to 4 inclusive the member 17 and throw 29 are assembled and riveted together in the latch housing 21 as shown in Figure 2; the disc 14 carrying pins 15 may then be snapped into position in the housing 21 and the lock core 10 may afterwards be inserted into its housing, making telescopic connection with pins 15.

In the structure shown in Figure 5 the throws 32 are inserted in the latch housing at the time the latch is assembled and after the latch housing has been inserted into its mortise the discs 14 carrying pins 15 are snap ed into place. The lock cores 10 may then e inserted, preferably through escutcheon lates 40, so as to make operative connection with the pins 15. If only one lock is used in connection with this device, then one throw 32 may remain idle and inoperative in the look.

This throw mechanism is sim 1e and efiicient in construction and is readi y ap lied to ver many different ty es of locks, t e pins 15 eing adapted to te escope into all cores of the type herein shown regardless of len h or number of tumbler, barrels and the iso 14 being adapted to snap into substantially any supporting structure with which a latch mechanism may be associated.

The zforegoing description and' accompanying drawings clearly disclosed a preferred embodiment of my invention but it will be understood that this disclosure is merely illustrative and that vice may be resorted to as are within the scope and spirit of the following claims.

I claim:

1. Lock throw mechanism embodying a disc, expansible snap ring means on the periphery of said disc and key plug engaging means projecting from one side of said disc.

2. Lock throw mechanism including a disc, expansible locking means on the periphery of said disc and pins projecting from one side of said disc for telescopic en gagement with a lock.

3. Lock throw mechanism embodying a disc having a peripheral groove, an expansion ring in said groove, two relatively long lock engaging pins rojecting from one side of said disc and s orter throw pins projecting from the other side of said disc.

4. Lock throw mechanism embodying a disc having a peripheral groove, an expansion ring in said groove, relatively long lock engaging pins on one side of said disc, a throw member, and means on the other side of said disc for engaging with said throw member.

5. In a pin tumbler lock, a lock core, throw devices arranged to engage telescopically with said lock core and snap means on said throw devices arranged to engage with a latch housing.

6. In a pin tumbler lock, a lock core, a latch housing and throw devices arranged to snap into rotative engagement with said latch housing and to telescopically engage said lock core.

7. In a pin tumbler look, a lock core having a key plug provided with longitudinally extending holes, a disc having a peripheral groove, an expansible snap ring in said groove, a latch housing having an opening for the reception of said disc and havin an annular groove for the reception of sai snap ring, throw pins on one side of said disc and longer pins on the other side ol said disc arranged to enter said holes in said key plug.

such changes in the de-- 8. In lock throw mechanism a disc, snap means on the periphery of said disc for engaging with a housing, means on one side of sa-i disc for telescopically engaging with a rotatable lock member, a rotary throw member, pins on said disc engaging said rotary throw member and a throw bar secured to said rotary throw member.

9. In a pin tumbler look, a lock core having a rotatable key plug, a latch housing, a throw member telescopically connected with said key plug, another cylindrical throw member mounted for rotation in said latch housing and connected with said first named throw member and a throw bar secured to .said last named (throw member.

10. In a lock of the class described, a latch housing having a counterbored hole therein, a cylindrical throw member rotatable in said hole and having a head fitting the counterbored portion thereof, a throw secured to the end of said cylindrical throw member and securing the same in assembled relation relative to said latch housing and lock controlled means for rotating said cylindrical throw member.

11. In a lock of the class described, a latch housing having a counterbored hole them in said counterbore having an annular circumferential groove, a cylindrical throw member rotatable in said hole and having a head portion fitting within said counterbore, another throw member arranged to fit within said counterbore, and make operative connection with said cylindrical throw member, a snap ring on said other throw member arranged to snap into said groove, lock controlled means for rotating said other throw member and a throw bar secured to the end of said cylindrical throw member and holding the same in assembled relation relative to said lock housing. I

12. In an extension cylinder look a throw member having a recess, and astaple having its closed end bent at right all les and arranged to fit within and be secure to said throw member, the legs of said staple forming outwardly projecting pins arranged to fit telescopically into a lock.

' FRANK ELLISON BEST. 

